Question

Find F’(x) and show all applicable work.

Answer 1

the integration can be simplified to

∫ t⁻³ with the limits cosx and 0 (sorry it's difficult to type it >.<)

you then integrate the value to get:

∫ -1/2t⁻² with the limits cosx and 0

then sub in your limits to get;

( -1/2(cosx)⁻² ) - ( -1/2(0)⁻² )

= - cosx⁻² / 2

i hope this helps, if you're struggling to understand i can try get a written working out instead :D (not sure if i got this right too...)